3881420 has 12 divisors (see below), whose sum is σ = 8151024. Its totient is φ = 1552560.

The previous prime is 3881419. The next prime is 3881431. The reversal of 3881420 is 241883.

It is a self number, because there is not a number n which added to its sum of digits gives 3881420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97016 + ... + 97055.

It is an arithmetic number, because the mean of its divisors is an integer number (679252).

Almost surely, 2^3881420 is an apocalyptic number.

It is an amenable number.

3881420 is an abundant number, since it is smaller than the sum of its proper divisors (4269604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3881420 is a wasteful number, since it uses less digits than its factorization.

3881420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194080 (or 194078 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 3881420 is about 1970.1319752748. The cubic root of 3881420 is about 157.1557273992.

The spelling of 3881420 in words is "three million, eight hundred eighty-one thousand, four hundred twenty".